1 | /* $Id: UIPopupPaneDetails.cpp 76553 2019-01-01 01:45:53Z vboxsync $ */
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2 | /** @file
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3 | * VBox Qt GUI - UIPopupPaneDetails class implementation.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2013-2019 Oracle Corporation
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8 | *
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9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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10 | * available from http://www.virtualbox.org. This file is free software;
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11 | * you can redistribute it and/or modify it under the terms of the GNU
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12 | * General Public License (GPL) as published by the Free Software
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13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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16 | */
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17 |
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18 | #ifdef VBOX_WITH_PRECOMPILED_HEADERS
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19 | # include <precomp.h>
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20 | #else /* !VBOX_WITH_PRECOMPILED_HEADERS */
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21 | /* Qt includes: */
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22 | # include <QCheckBox>
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23 | # include <QTextDocument>
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24 | # include <QTextEdit>
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25 |
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26 | /* GUI includes: */
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27 | # include "UIAnimationFramework.h"
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28 | # include "UIPopupPaneDetails.h"
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29 |
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30 | #endif /* !VBOX_WITH_PRECOMPILED_HEADERS */
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31 |
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32 |
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33 | UIPopupPaneDetails::UIPopupPaneDetails(QWidget *pParent, const QString &strText, bool fFocused)
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34 | : QWidget(pParent)
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35 | , m_iLayoutMargin(5)
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36 | , m_iLayoutSpacing(10)
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37 | , m_strText(strText)
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38 | , m_pTextEdit(0)
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39 | , m_iDesiredTextEditWidth(-1)
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40 | , m_iMaximumPaneHeight(-1)
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41 | , m_iMaximumTextEditHeight(0)
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42 | , m_iTextContentMargin(5)
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43 | , m_fFocused(fFocused)
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44 | , m_pAnimation(0)
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45 | {
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46 | /* Prepare: */
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47 | prepare();
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48 | }
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49 |
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50 | void UIPopupPaneDetails::setText(const QString &strText)
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51 | {
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52 | /* Make sure the text has changed: */
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53 | if (m_strText == strText)
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54 | return;
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55 |
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56 | /* Fetch new text: */
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57 | m_strText = strText;
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58 | m_pTextEdit->setText(m_strText);
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59 |
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60 | /* Update size-hint/visibility: */
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61 | updateSizeHint();
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62 | updateVisibility();
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63 | }
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64 |
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65 | QSize UIPopupPaneDetails::minimumSizeHint() const
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66 | {
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67 | /* Check if desired-width set: */
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68 | if (m_iDesiredTextEditWidth >= 0)
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69 | /* Dependent size-hint: */
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70 | return m_minimumSizeHint;
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71 | /* Golden-rule size-hint by default: */
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72 | return QWidget::minimumSizeHint();
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73 | }
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74 |
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75 | void UIPopupPaneDetails::setMinimumSizeHint(const QSize &minimumSizeHint)
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76 | {
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77 | /* Make sure the size-hint has changed: */
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78 | if (m_minimumSizeHint == minimumSizeHint)
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79 | return;
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80 |
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81 | /* Fetch new size-hint: */
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82 | m_minimumSizeHint = minimumSizeHint;
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83 |
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84 | /* Notify parent popup-pane: */
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85 | emit sigSizeHintChanged();
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86 | }
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87 |
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88 | void UIPopupPaneDetails::layoutContent()
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89 | {
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90 | /* Variables: */
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91 | const int iWidth = width();
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92 | const int iHeight = height();
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93 | const int iTextEditWidth = m_textEditSizeHint.width();
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94 | const int iTextEditHeight = m_textEditSizeHint.height();
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95 |
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96 | /* TextEdit: */
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97 | m_pTextEdit->move(m_iLayoutMargin, m_iLayoutMargin);
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98 | m_pTextEdit->resize(qMin(iWidth, iTextEditWidth), qMin(iHeight, iTextEditHeight));
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99 | /* Text-document: */
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100 | QTextDocument *pTextDocument = m_pTextEdit->document();
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101 | if (pTextDocument)
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102 | {
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103 | pTextDocument->adjustSize();
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104 | pTextDocument->setTextWidth(m_pTextEdit->width() - m_iTextContentMargin);
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105 | }
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106 | }
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107 |
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108 | void UIPopupPaneDetails::sltHandleProposalForWidth(int iWidth)
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109 | {
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110 | /* Make sure the desired-width has changed: */
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111 | if (m_iDesiredTextEditWidth == iWidth)
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112 | return;
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113 |
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114 | /* Fetch new desired-width: */
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115 | m_iDesiredTextEditWidth = iWidth;
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116 |
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117 | /* Update size-hint: */
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118 | updateSizeHint();
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119 | }
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120 |
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121 | void UIPopupPaneDetails::sltHandleProposalForHeight(int iHeight)
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122 | {
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123 | /* Make sure the desired-height has changed: */
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124 | if (m_iMaximumPaneHeight == iHeight)
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125 | return;
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126 |
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127 | /* Fetch new desired-height: */
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128 | m_iMaximumPaneHeight = iHeight;
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129 | m_iMaximumTextEditHeight = m_iMaximumPaneHeight - 2 * m_iLayoutMargin;
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130 |
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131 | /* Update size-hint: */
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132 | updateSizeHint();
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133 | }
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134 |
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135 | void UIPopupPaneDetails::sltFocusEnter()
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136 | {
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137 | /* Ignore if already focused: */
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138 | if (m_fFocused)
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139 | return;
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140 |
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141 | /* Update focus state: */
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142 | m_fFocused = true;
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143 |
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144 | /* Update visibility: */
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145 | updateVisibility();
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146 |
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147 | /* Notify listeners: */
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148 | emit sigFocusEnter();
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149 | }
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150 |
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151 | void UIPopupPaneDetails::sltFocusLeave()
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152 | {
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153 | /* Ignore if already unfocused: */
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154 | if (!m_fFocused)
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155 | return;
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156 |
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157 | /* Update focus state: */
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158 | m_fFocused = false;
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159 |
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160 | /* Update visibility: */
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161 | updateVisibility();
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162 |
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163 | /* Notify listeners: */
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164 | emit sigFocusLeave();
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165 | }
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166 |
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167 | void UIPopupPaneDetails::prepare()
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168 | {
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169 | /* Prepare content: */
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170 | prepareContent();
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171 | /* Prepare animation: */
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172 | prepareAnimation();
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173 |
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174 | /* Update size-hint/visibility: */
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175 | updateSizeHint();
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176 | updateVisibility();
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177 | }
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178 |
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179 | void UIPopupPaneDetails::prepareContent()
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180 | {
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181 | /* Create text-editor: */
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182 | m_pTextEdit = new QTextEdit(this);
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183 | if (m_pTextEdit)
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184 | {
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185 | /* Configure text-editor: */
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186 | m_pTextEdit->setFont(tuneFont(m_pTextEdit->font()));
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187 | m_pTextEdit->setText(m_strText);
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188 | m_pTextEdit->setFocusProxy(this);
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189 | }
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190 | }
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191 |
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192 | void UIPopupPaneDetails::prepareAnimation()
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193 | {
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194 | /* Propagate parent signals: */
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195 | connect(parent(), SIGNAL(sigFocusEnter()), this, SLOT(sltFocusEnter()));
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196 | connect(parent(), SIGNAL(sigFocusLeave()), this, SLOT(sltFocusLeave()));
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197 | /* Install geometry animation for 'minimumSizeHint' property: */
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198 | m_pAnimation = UIAnimation::installPropertyAnimation(this, "minimumSizeHint", "collapsedSizeHint", "expandedSizeHint",
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199 | SIGNAL(sigFocusEnter()), SIGNAL(sigFocusLeave()), m_fFocused);
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200 | }
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201 |
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202 | void UIPopupPaneDetails::updateSizeHint()
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203 | {
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204 | /* Recalculate collapsed size-hint: */
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205 | {
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206 | /* Collapsed size-hint with 0 height: */
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207 | m_collapsedSizeHint = QSize(m_iDesiredTextEditWidth, 0);
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208 | }
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209 |
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210 | /* Recalculate expanded size-hint: */
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211 | {
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212 | int iNewHeight = m_iMaximumPaneHeight;
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213 | QTextDocument *pTextDocument = m_pTextEdit->document();
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214 | if (pTextDocument)
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215 | {
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216 | /* Adjust text-edit size: */
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217 | pTextDocument->adjustSize();
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218 | /* Get corresponding QTextDocument size: */
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219 | QSize textSize = pTextDocument->size().toSize();
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220 | /* Make sure the text edits height is no larger than that of container widget: */
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221 | iNewHeight = qMin(m_iMaximumTextEditHeight, textSize.height() + 2 * m_iLayoutMargin);
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222 | }
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223 | /* Recalculate label size-hint: */
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224 | m_textEditSizeHint = QSize(m_iDesiredTextEditWidth, iNewHeight);
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225 | /* Expanded size-hint contains full-size label: */
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226 | m_expandedSizeHint = m_textEditSizeHint;
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227 | }
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228 |
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229 | /* Update current size-hint: */
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230 | m_minimumSizeHint = m_fFocused ? m_expandedSizeHint : m_collapsedSizeHint;
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231 |
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232 | /* Update animation: */
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233 | if (m_pAnimation)
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234 | m_pAnimation->update();
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235 |
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236 | /* Notify parent popup-pane: */
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237 | emit sigSizeHintChanged();
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238 | }
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239 |
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240 | void UIPopupPaneDetails::updateVisibility()
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241 | {
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242 | if (m_fFocused && !m_strText.isEmpty())
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243 | show();
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244 | else
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245 | hide();
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246 | }
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247 |
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248 | /* static */
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249 | QFont UIPopupPaneDetails::tuneFont(QFont font)
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250 | {
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251 | #if defined(VBOX_WS_MAC)
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252 | font.setPointSize(font.pointSize() - 2);
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253 | #elif defined(VBOX_WS_X11)
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254 | font.setPointSize(font.pointSize() - 1);
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255 | #endif
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256 | return font;
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257 | }
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258 |
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